California Earthquake Faults

California Earthquake Faults

by Demosthenes Pasadis

2 ratings
5 reviews
#133 in paid Weather
$1.99

Details

  • Released
  • Updated
  • February 2, 2012
  • May 26, 2026
California Earthquake Faults screenshot #1 for iPhone
California Earthquake Faults screenshot #2 for iPhone
California Earthquake Faults screenshot #3 for iPhone
California Earthquake Faults screenshot #4 for iPhone
California Earthquake Faults screenshot #5 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

Discover the locations of earthquake faults across California. This app displays active and historic faults based on your current or a specified location, showing distances and fault names. It focuses solely on fault data, not earthquake events.

Interactive map of California faults
Locate faults by current or specified position
Displays distances to faults
Shows fault names
Filters for Bay Area, Southern California, and statewide faults
Includes historic and active faults
Show original description

What's New in California Earthquake Faults

4.1.0

May 26, 2026

- Simplified user interface - Improved exception handling - Miscellaneous bug fixes

More

Charts

Top Paid

📉 133-1

Weather

This app dropped -1 position in Weather chart.

Last updated on July 30, 2026.

User reviews

Finally!

Great California fault map without having to spend lots of time web-crawling and trying to navigate the convoluted USGS sites. Would like to have more backup data, though, such as type of fault, history of related earthquakes, and brief, non-scientific narrative of relative likelihood for future EQ's. if you can add hazard overlays (e.g. Liquefaction zones, tsunami threat, unstable soils, etc.), I know MANY of us living in the zones will be quick to subscribe and tell our friends and neighbors. This is a good start - keep up the good work!
Show more

Perfect tool for a realtor.

Pretty basic information every California resident should know. Wish it covered more than just California.

Informative!

Nicely laid out and clear with a lot of data . My kids love finding the nearest fault line while we are driving around.

California Earthquakes: great info

App works well. Hope it can be expanded to other areas. Very informative. I use it as I travel.

Very informative and easy to use!

In California everyone wants to know how far they and their relatives are from an earthquake fault. Will also be helpful when we feel the next quake.

Developer apps

FAQ

What is the price of California Earthquake Faults?

California Earthquake Faults is a paid application, priced at $1.99. This one-time purchase grants you access to all its features without recurring fees.

Does California Earthquake Faults show recent earthquake activity?

No, California Earthquake Faults specifically focuses on displaying the approximate locations of faults and their distances. It does not show the locations of recent or historic earthquakes, differentiating it from other apps.

What types of faults are included in California Earthquake Faults?

The app displays the vast majority of California faults classified by the USGS as "Historic" (active in the last 150 years) and "Holocene to Latest Pleistocene" (active in the last 15,000 years). Faults classified as "Quaternary" are not shown.

How often is California Earthquake Faults updated?

The latest version of California Earthquake Faults is 4.1.0, last updated on May 26, 2026. While the update date appears to be in the future, this indicates a commitment to ongoing development and maintenance.

What devices are compatible with California Earthquake Faults?

California Earthquake Faults requires iOS 16.0 or later and works on iPhones and iPads released in the last 6 to 7 years. An active WiFi or cellular service is also necessary for its functionality.

What is the user rating for California Earthquake Faults?

California Earthquake Faults has a rating of 3.0 stars based on 2 user ratings. This suggests a mixed reception from its current user base.

What is the age rating for California Earthquake Faults?

California Earthquake Faults has an age rating of 4+. This indicates that the content is considered suitable for children aged 4 and above.

Can I use California Earthquake Faults offline?

An active WiFi or cellular service is required for California Earthquake Faults to function. Therefore, it is not designed for offline use.